Carrier.



SiS-'l2 PATBNTED JUNE 16, 1903.

-ATTEBSON. CARRIER.

APPLIGATIOI FILED DBO. 18. 1902.

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uaaua Patented June 16, i903.

' PATENT OFFICE.

STUART HAYT PATTERSON, OF PLAIN FIELD, NEW JERSEY.

CARRIER.

SPEGIFICATION formingpart of Letters Patent No. 731,125, dated .Tune 16, 1903. Application filed December 19, 1902. Serial No.- 135 ,856. (No model.)

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To all -w'tcmtitv #tial/ concern:

it known that I, STUARTHAYT PATTER- SON, .citizen of the United States, residing 'at Plainfield, in" the county of Union and State of New Jersey, have invented a certain new and useful Improvement in Carriers, of which thefollowing is a specification?, reference being had to the accompanying drawings, in whichrq v Figure'l represents a vertical elevatidn of the carrier along' the dotted line av shown in Fig. 2; and Fig. 2 represents a side view of the carrier and series of electromaguets, with the side of a kiln' broken away.

Similar letters referto similar parts throughout the several views.

My invention relates, among other things, to improvements in carriers and methods of locomotion where such carriers are operated by the magnetic power of the poles of a series of electromagnets so arranged as to operate upon the circumference of a wheel or wheels supporting such carriers, and is especially designed for use in connection with a kiln or furnace for roasting, smelting, or otherwise treating ores or similar substances.

The object of my invention is to provide a truck or carrier supported upon a railway and operated automatically in a forward direction by a series of electromagnets so arranged and disposed as to supply a continuous attractive magnetic force from the poles of the magnets upon segments of the circumference of the wheel or wheels of the carrier to the end that continuous forward movement may be attained and imparted to the carrier bymeans of the current of electricity passing through the series of electromagnets, said current being `automatically switched to the adjoining forward magnet by the forward revolution of the wheel or wheels of the truck or carrier.

Heretofore carriers designed for use in kilns or furnaces have been operated by hand or by constructing trucks operated in parallelism beneath the kiln and througlnl slotfor ppning in the .floor bf the kiln. lll en. Y'vors :to operate th-,truck with its rakes attached withinl ftheI kiln by means of a cable or chain have vbeen found to be im practicaowing the. necessity of the cable or chain being continuously subjected to high degrees of temperature, requisite to operate such kilns or furnaces, which in a very short time renders such cable or chain useless. In my improved mechanism but a very small part of the motive power is continuously exposed to the heat of the kiln, and even such exposed part is so disposed as not to be affected by the intense heat.

My improved carrier may be employed in many ways outside of its use in connection with kilns or furnaces; but I have preferred to show in the drawings its operation in connection with an ordinary kiln used in roasting or smelting ores.

A kiln A is constructed of any desired form and of suitable materials and may be supported upon a framework S, Q, and Q. The door or bottom A of the kiln maybe supported upon the uprights W W W2 WS W4, as shown in Fig. 1. Rails T T are laid upon the framework U and supported thereby and are properly insulated from the said framework U and are of a metal of suitable conductivity. Upon these rails T T the wheels. of the carrier B and C, preferably constructed of steel or forged iron, are adjusted so as to revolve upon the rails. The rails TT are divided into sections m r11/m2, (shown in Fig. 2,) each section insulated from its adjoining section, to the end that the current of electricity may be switched automatically forward from one electromagnet to another by the forward revolution of the wheel or wheels of the carrier. The wheels B and C are connected with each other by the aXle D, and

supported to the axle and 'our'naled at d and d. is a framework b of auv desired form, to y which are adj ustedthe rakes or plows R R R2 R3, requisite to crate upon the ores O, spread out upon the lider of the kiln. A second pair of wheels B' C (shown in Fig. 2) may be adjusted so as to revolve upon the rails in the same manner as B and C. Beneath said rails on each side of the kiln arearrangedarseries of electromagnets uniformly opposite ea'ch other M G G G2 G3 G4. (More fully shown in Fig. 2.) The.', poles P P Pg, P3 P4 P5 are vertically disposed andadjusted so that their plane is slightly lowenthan the plane of the rails T T to the end that them:

SEARCH ROOM maybein close magnetic proximity with tne pole or poles directly beneath the point of contact between said wheels and said rails. The electromagnets are protected from the heat of the kiln and insulated from the various rail-sections and from each other by any suitable insulating materials I I', preferably mica, owing to its capability of withstanding intense heat. As shown at e and f in Fig. 2, the rails T T are separated and insulated from their component parts between the electromagnets at such distances from the poles P P P2 P3 Pf, &c., of the electromagnets as practice requires. The cnrrent of electricity is conducted to the electromagnets by a ground-wire t'. (Shown in Fig. 2.) The outflow of the electric current from the magnets is made through the wires t t' t2 t3 to that section of the rail next adjoining the pole of the electromagnet from which the current issues. Thence the current flows from the rail-section through the Wheels and axles to the corresponding rail-section on the opposite side of the track, then through the coils of the opposite magnet, and thence issues from the electromagnet to the main groundwire 2 on the opposite side, thus making a continuous closed circuit througlr the coils of the electromagnets correspondingly opposite each other on either side of the railway.

The operation of my carrier is as follows: The wheels B and C rest upon the rails T and T, substantially as shown in Fig. 2, with that segment of the circumference of the wheel B resting upon the rail-section in close magnetic proximity to the pole P3 of the electromagnet G3 and the circumference of the wheel C occupying a similar position upon the rail and near the pole of an elecromagnet similarly and oppositely placed under the opposite rail. The electric current is now passed from the initial source through the wire i and the coils of the electromagnet G2 and the rail-section m opposite to P3, which causes the magnetic attraction to be developed instantly on the pole P2. From the rail-section m, last referred to, the electric current passes upward through the wheel B and axle D to the wheel Con the opposite rail, and thence through the coil of the electromagnet opposite M, and thence by the main wire t" to the initial source of the electricity. By this means the magnetic force at the pole P2 of the magnet G2 is exerted upon the circumference of the wheel B at or near b2 and tends to draw that part of the circumference to the pole P2, and a similar magnetic force from the poleP of the magnet M is exerted upon the circumference of the wheel C, which forces cause both wheels B and C to revolve in the direction indicated by the arrow. As soon as the Wheel B has revolved far enough to come in contact with that section of the rail marked 'm' (see Fig. 2) the current is broken in connection with the magnet G2 and its opposite magnet M, and instantly the current acts through the magnet G and its opposite magnet, causing the pole P and the pole of the opposite magnet to exert its magnetic force upon the contiguous circumference of the wheels B and C. This operation is continuous and automatic and may likewise act upon the wheels B and C', and thus a continuous forward movement is given to the whole carrier. The kiln remains stationary and the movement of the carrier is forward in the single direction, as shown by the arrow in Fig. 2. To this end the track for the carrier is circular, so that the carrier always enters the kiln at one end and issues at the other. Any of the usual means for reversing the circuit may be employed when a reciprocating movement upon a straight track is desired and the operation of the carrier would be the same. In the present instance, however, I have only shown and described apparatus for a carrier moving in a single direction.

While I have shown my improved carrier and methods of locomotion to be especially adapted for use in kilns or furnaces, I do not wish, however, to be understood as limiting its use for such purposes entirely; but Imay apply my mechanism as a means of locomotion to any form of truck or carrier where it may prove essential or practical to employ a current of electricity as a source of power in the manner I have herein shown and described; nor do I wish to limit myself to the use of single-poled electromagnets entirely, for double-poled magnets may be employed in my mechanism with equal efficiency.

What I claim as new, and desire to secure by Letters Patent, is the following, viz:

1. In a carrier, the combination of a pair of wheels revolving upon a pair of rails composed of sections insulated from each other, a series of electromagnets vertically disposed beneath said railsso as to create an electromagnetic field along said rails, and means for sequentially connecting said rail-sections with said electromagnets, substantially as and for the purposes set forth.

2. In a carrier, the combination of a pair of wheels revolving upon a pair of rails composed of sections insulated from each other, a series of electromagnets vertically disposed beneath said rail-sectonsso as to create an 'ntermittentelectromagnetic field along said rails, and means for sequentially connecting said rail-sections with said electromagnets, substantially as and for the purposes set forth. l

3. In a carrier, the combination of a plurality of wheels revolving upon a pair of rails composed of sections insulated from each other, a series of electromagnets vertically disposed beneath said rails so as to create an electromagnetic eld along said rails and IOC IIO

means for sequentially connecting said railalong said .rails and means for sequentially n sections with said electromagnets, substanconnecting said rail-sections with said electially as and for the purposes set forth. tromagnets, substantially as and for the pur- 4. In a carrier, 'the combination of a plnposes set forth. rality of wheels revolving upon a pair of rails composed of sections insulated from each STUAR HAYT PATTERSON' other, a series of electromagncts vertically Witnesses:

disposed beneath said rail-sections so as to JOSEPH SCUDDER,

create an intermittent electromagnetic ield l GEORGE G. DYER. 

